Highly Excited Nuclear Residual States in the (γ,π^+) Reaction in the Threshold Region

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概要

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• Energy distributions of π^+ electroproduced on ^6Li, ^9Be and ^<28>Si were measured at the electron energy of about 200 MeV. The photon difference method was applied to these (e,π^+) spectra in order to extract the (γ,π^+) cross sections. Present results and previously obtained data show considerable contribution from several discrete levels of the residual nuclei. The spin-isospin flip giant resonance in residual nuclei could be studied up to about 20 MeV residual excitation except in ^6Li which showed a small quasi-free and/or continuum contribution. In ^9Be and ^<28>Si, the present results show giant resonances in the residual nuclei with a width of about 15 MeV in the gross shape.

• 社団法人日本物理学会の論文
• 1994-02-15

著者

• Takeshita Kunikazu

  Laboratory of Nuclear Science,Tohoku University

• Tsubota Hiroaki

  Department of Physics,College of General Education,Tohoku University

• Shoda Katsufusa

  Laboratory of Nuclear Science,Tohoku University

• Takeshita Kunikazu

  Laboratory Of Nuclear Science Tohoku University

• Tsubota Hiroaki

  Department Of Physics College Of General Of Education Tohoku University

• Tsubota Hiroaki

  Department Of Physics Tohoku University

• Tsubota Hiroaki

  College Of General Educaion Tohoku University

• Shoda Katsufusa

  Laboratory Of Nuclear Science Faculty Of Science Tohoku University

• Shoda K

  Tohoku Univ. Sendai

• Sasaki Osamu

  Laboratory of Nuclear Science, Tohoku University

• Taniuchi Tsutomu

  Laboratory of Nuclear Science, Tohoku University

• Tsubota H

  Department Of Physics Tohoku University

• Taniuchi Tsutomu

  Laboratory Of Nuclear Science Tohoku University

• Sasaki O

  Tohoku Univ. School Of Medicine Sendai

• Sasaki Osamu

  Laboratory Of Crop Science

• Tsubota Hiroaki

  Department Of Physics College Of General Education Tohoku University

関連論文

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• Photoproton Spectra from ^Cu and ^Cu
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• Photoprotons from ^Al
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• Out-of-Plane Measurement of the ^Cu (e,e'p_0) Reaction in the Giant Resonance Region
• Surprisal Analysis of the ^Cu (e,p_0) Reactions
• Cross Sections and Angular Distributions for the ^B (e,p) and ^B (e,d) Reactions in the Giant Resonance Region (Nuclear Physics)
• Angular Distributions of Fast Photoneutrons from Pb, Bi and Ta
• Highly Excited Nuclear Residual States in the (γ,π^+) Reaction in the Threshold Region
• Photo π^+ Production from ^O
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